CN214999195U - Forward and reverse lead screw transmission module - Google Patents
Forward and reverse lead screw transmission module Download PDFInfo
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- CN214999195U CN214999195U CN202121418302.2U CN202121418302U CN214999195U CN 214999195 U CN214999195 U CN 214999195U CN 202121418302 U CN202121418302 U CN 202121418302U CN 214999195 U CN214999195 U CN 214999195U
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- ball screw
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- bidirectional driving
- servo motor
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Abstract
The utility model relates to a mechanical transmission technical field specifically is a relate to a positive reverse lead screw drive's module, include: the device comprises a base, a bidirectional driving piece, a first sliding seat, a second sliding seat, a servo motor and a linear rail assembly; the bidirectional driving piece comprises a first ball screw and a second ball screw which are coaxially butted, a first nut and a second nut which are respectively matched with the first ball screw and the second ball screw, and the spiral directions of the first ball screw and the second ball screw are reversely arranged; the bidirectional driving piece is arranged on the base, and the first ball screw and the second ball screw are rotationally connected with the mounting piece; the first sliding seat and the second sliding seat are fixedly connected with a first nut and a second nut respectively; the servo motor is fixed on the mounting piece, and an output shaft of the servo motor is connected with the bidirectional driving piece; the line rail assembly is arranged on the base; the scheme has the advantages of simple structure, high control precision, stable working effect and high transmission efficiency.
Description
Technical Field
The utility model relates to a mechanical transmission technical field specifically relates to a positive reverse lead screw drive's module.
Background
When the industry needs to carry out opposite or reverse synchronous motion on a workpiece or a mechanical structure, a pair of driving devices arranged in reverse directions are often needed, the matching precision is poor, and other positioning or feedback components are often needed for assistance so as to ensure the coordination of the motion of the workpiece or the mechanical structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, a forward and reverse screw transmission module is provided.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a forward and reverse screw drive module comprising: the device comprises a base, a bidirectional driving piece, a first sliding seat, a second sliding seat, a servo motor and a linear rail assembly;
the base comprises a rectangular base arranged at the bottom of the module, the base is provided with an installation part used for fixing the bidirectional driving part and the servo motor, the bidirectional driving part comprises a pair of first ball screw and second ball screw which are coaxially butted, and a first nut and a second nut which are respectively matched with the first ball screw and the second ball screw, and the spiral directions of the first ball screw and the second ball screw are reversely arranged;
the bidirectional driving piece is arranged on the base along the length direction of the base, and one ends, far away from each other, of the first ball screw and the second ball screw are rotatably connected with the mounting piece;
the first sliding seat and the second sliding seat are fixedly connected with a first nut and a second nut respectively;
the servo motor is fixed on the mounting piece, an output shaft of the servo motor is coaxially arranged with one end of the bidirectional driving piece, and the servo motor is used for driving the bidirectional driving piece to rotate around the axis of the bidirectional driving piece;
the linear rail assembly is arranged on the base, and the working direction of the linear rail assembly is arranged along the axial direction of the bidirectional driving piece.
Preferably, one ends of the first and second ball screws are connected to each other by a first coupling.
Preferably, the output shaft of the servo motor is fixedly connected with the end part of the bidirectional driving piece through a second coupling.
Preferably, a cover plate is arranged above the base, the cover plate covers the upper portion of the bidirectional driving piece in a working state, and a gap for the first sliding seat and the second sliding seat to penetrate through is formed between the two sides of the cover plate and the base.
Preferably, the mounting part comprises a pair of bearings for supporting two ends of the bidirectional driving part, and a front end supporting part and a rear end supporting part which respectively play a supporting effect on the pair of bearings; the front end supporting piece and the rear end supporting piece are respectively fixed at two ends of the base in the length direction, and the servo motor is fixed on the rear end supporting piece.
Preferably, the first sliding seat and the second sliding seat are provided with anti-collision blocks for buffering.
Compared with the prior art, the utility model beneficial effect who has is:
1. the utility model discloses a two-way driving piece drives first slide, second slide in step and is close to each other or keeps away from, stable in structure, and control accuracy is high.
2. The utility model discloses a set up the stability that the installed part can improve two-way driving piece and servo motor during operation effectively, it is concrete, guaranteed two-way driving piece rotatory smoothness degree and stability through a pair of bearing of installed part, rear end support piece plays stable supporting effect to servo motor simultaneously.
3. The utility model discloses a set up the apron and play effectual protection to the inside two-way driving piece isotructure of base to the life of structure has been improved.
4. The utility model discloses a set up the anticollision piece and can protect first slide, second slide effectively, specific, share the impact that first slide, second slide received when moving to the stroke end through setting up the anticollision piece, the preferred flexible material that has the energy-absorbing effect of anticollision piece.
5. The utility model discloses transmission efficiency is high, has played the reinforcement effect.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a perspective view of the present invention with the cover removed;
fig. 3 is an exploded perspective view of the present invention.
The reference numbers in the figures are:
1-a base; 1 a-a base; 1 b-a mount; 1b 1-bearing; 1b 2-front end support; 1b 3-back end support; 1 c-a cover plate;
2-a bidirectional driving member; 2 a-a first ball screw; 2 b-a second ball screw; 2 c-a first nut; 2 d-a second nut; 2 e-a first coupling;
3-a first slide;
4-a second slide;
5-a servo motor; 5 a-a second coupling;
6-wire track assembly;
7-a crash block;
s1-front end support; s2-front end cover plate; s3-clamp spring; s4-bearing seat; s5-a rear end support; s6-rear end cover plate.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
In order to solve the technical problem of how to provide a stable bidirectional driving function, as shown in fig. 1 to 3, the following technical solutions are provided:
a forward and reverse screw drive module comprising: the device comprises a base 1, a bidirectional driving piece 2, a first sliding seat 3, a second sliding seat 4, a servo motor 5 and a linear rail assembly 6;
the base 1 comprises a rectangular base 1a arranged at the bottom of the module, the base 1a is provided with an installation part 1b used for fixing a bidirectional driving part 2 and a servo motor 5, the bidirectional driving part 2 comprises a pair of first ball screw 2a and a second ball screw 2b which are coaxially butted, a first nut 2c and a second nut 2d which are respectively matched with the first ball screw 2a and the second ball screw 2b, and the spiral directions of the first ball screw 2a and the second ball screw 2b are reversely arranged;
the bidirectional driving piece 2 is arranged on the base 1a along the length direction of the base 1a, and one ends, far away from each other, of the first ball screw 2a and the second ball screw 2b are rotatably connected with the mounting piece 1 b;
the first sliding seat 3 and the second sliding seat 4 are respectively fixedly connected with the first nut 2c and the second nut 2 d;
the servo motor 5 is fixed on the mounting piece 1b, an output shaft of the servo motor 5 is coaxially arranged with one end of the bidirectional driving piece 2, and the servo motor 5 is used for driving the bidirectional driving piece 2 to rotate around the axis of the bidirectional driving piece;
the wire track assembly 6 is arranged on the base 1a, and the working direction of the wire track assembly 6 is arranged along the axial direction of the bidirectional driving piece 2.
Specifically, the servo motor 5 is electrically connected to the controller. The linear rail assembly 6 is a combination of a conventional linear guide and a slider engaged with the linear guide. The controller sends a signal to the servo motor 5, and the servo motor 5 drives the first ball screw 2a and the second ball screw 2b to rotate circumferentially around the shared axis after receiving the signal. When the first ball screw 2a and the second ball screw 2b rotate, the rotating force is transmitted to the first nut 2c and the second nut 2 d. Because the first slide seat 3 and the second slide seat 4 which are respectively fixedly connected with the first nut 2c and the second nut 2d are limited by the linear rail assembly 6, the first nut 2c and the second nut 2d can not rotate along with the first ball screw 2a and the second ball screw 2b, so that the rotating force is converted into the driving force along the axial direction of the first ball screw 2a and the second ball screw 2b to the first slide seat 3 and the second slide seat 4, and the spiral directions of the first ball screw 2a and the second ball screw 2b are opposite, the first slide seat 3 and the second slide seat 4 can be synchronously driven to be close to or far away from each other, and the first slide seat 3 and the second slide seat 4 can be connected with a supporting plate or a clamping jaw for transferring materials so as to realize different working requirements. The thread structure of the bidirectional driving piece 2 can effectively realize speed reduction and torque increase, and can also effectively improve the control precision.
Further:
in order to solve the technical problem of how to butt the ends of the first ball screw 2a and the second ball screw 2b, as shown in fig. 3, the following technical solutions are provided:
one ends of the first ball screw 2a and the second ball screw 2b are connected to each other by a first coupling 2 e.
Specifically, the first coupling 2e is a rigid coupling. The two ends of the first coupling 2e are respectively fixedly connected with the first ball screw 2a and the second ball screw 2b, and the first ball screw 2a and the second ball screw 2b are all collinear with the axis of the first coupling 2e, so that the collinear butt joint of the first ball screw 2a and the second ball screw 2b is realized.
Further:
in order to solve the technical problem of how to butt joint the output shaft of the servo motor 5 with the bidirectional driving member 2, as shown in fig. 3, the following technical solutions are provided:
the output shaft of the servo motor 5 is fixedly connected with the end part of the bidirectional driving piece 2 through a second coupling 5 a.
Specifically, the second coupling 5a is a diaphragm coupling. The output shaft of the servo motor 5 is butted with one end of the first ball screw 2a or the second ball screw 2b through the second coupler 5a, so that the integral synchronous driving of the bidirectional driving piece 2 is realized. This connected mode easy dismounting can conveniently change the subassembly of connecting.
Further:
in order to understand how to achieve a better protection effect on the components inside the base 1, as shown in fig. 1, the following technical solutions are provided:
a cover plate 1c is arranged above the base 1a, the cover plate 1c covers the bidirectional driving piece 2 in a working state, and a gap for the first sliding seat 3 and the second sliding seat 4 to pass through is formed between the two sides of the cover plate 1c and the base 1 a.
Specifically, can play effectual protection to two-way driving piece 2 on the one hand through setting up apron 1c, avoid two-way driving piece 2 to receive the impact or fall into dirty stability that influences work. Furthermore, the first and second carriages 3, 4 can be extended on both sides by a gap on both sides of the cover plate 1c, so that the first and second carriages 3, 4 can be assembled with a structure such as a pallet or a clamping jaw.
Further:
in order to solve the technical problem of how to support the bidirectional driving member 2 and the servo motor 5, as shown in fig. 3, the following technical solutions are provided:
the mounting piece 1b comprises a pair of bearings 1b1 for supporting two ends of the bidirectional driving piece 2, a front end support piece 1b2 and a rear end support piece 1b3 for respectively supporting the pair of bearings 1b 1; the front end supporting member 1b2 and the rear end supporting member 1b3 are fixed to both ends of the base 1a in the longitudinal direction, respectively, and the servo motor 5 is fixed to the rear end supporting member 1b 3.
Specifically, the bidirectional driving member 2 can perform a stable rotational motion by the bearing 1b 1. The bearing 1b1 is a deep groove ball bearing. The front end supporting piece 1b2 specifically comprises a front end support S1 installed at the front end of the base 1a, a front end cover plate S2 covering the front end of the front end support S1, and a snap spring S3 for clamping the bearing 1b1 in the front end support S1. Circlip S3 is an E-shaped circlip. The rear end supporting member 1b3 specifically includes a bearing seat S4 disposed at the rear end of the base 1a to support the other bearing 1b1, a rear end support S5 to support the bearing seat S4, and a rear end cover plate S6 covering the rear end of the rear end support S5, and the rear end cover plate S6 is fixedly connected to the servo motor 5.
Further:
in order to solve the technical problem of how to prevent the first sliding seat 3 and the second sliding seat 4 from being subjected to destructive collision in the movement process, as shown in fig. 2, the following technical scheme is provided:
the first slide 3 and the second slide 4 are provided with crash blocks 7 for cushioning.
Specifically, the crash block 7 is arranged to share the impact force received when the first sliding seat 3 and the second sliding seat 4 move to the stroke end, and the crash block 7 is preferably made of flexible material with energy absorption effect.
The utility model discloses a theory of operation:
step one, the controller sends a signal to the servo motor 5, and the servo motor 5 drives the first ball screw 2a and the second ball screw 2b to rotate circumferentially around the shared axis after receiving the signal. When the first ball screw 2a and the second ball screw 2b rotate, the rotating force is transmitted to the first nut 2c and the second nut 2 d.
And step two, the first nut 2c and the second nut 2d respectively drive the first sliding seat 3 and the second sliding seat 4 to move along the axial directions of the first ball screw 2a and the second ball screw 2b, and the first sliding seat 3 and the second sliding seat 4 move close to or away from each other due to the fact that the spiral directions of the first ball screw 2a and the second ball screw 2b are opposite.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a positive reverse screw drive's module which characterized in that includes: the device comprises a base (1), a bidirectional driving piece (2), a first sliding seat (3), a second sliding seat (4), a servo motor (5) and a linear rail assembly (6);
the base (1) comprises a rectangular base (1a) arranged at the bottom of the module, a mounting piece (1b) used for fixing the bidirectional driving piece (2) and the servo motor (5) is arranged on the base (1a), the bidirectional driving piece (2) comprises a pair of first ball screw (2a) and second ball screw (2b) which are coaxially butted, a first nut (2c) and a second nut (2d) which are respectively matched with the first ball screw (2a) and the second ball screw (2b), and the spiral directions of the first ball screw (2a) and the second ball screw (2b) are reversely arranged;
the bidirectional driving piece (2) is arranged on the base (1a) along the length direction of the base (1a), and one end, away from each other, of the first ball screw (2a) and the second ball screw (2b) is rotatably connected with the mounting piece (1 b);
the first sliding seat (3) and the second sliding seat (4) are respectively fixedly connected with the first nut (2c) and the second nut (2 d);
the servo motor (5) is fixed on the mounting piece (1b), an output shaft of the servo motor (5) is coaxially arranged with one end of the bidirectional driving piece (2), and the servo motor (5) is used for driving the bidirectional driving piece (2) to rotate around the axis of the bidirectional driving piece;
the linear rail assembly (6) is arranged on the base (1a), and the working direction of the linear rail assembly (6) is arranged along the axial direction of the bidirectional driving piece (2).
2. A reversible screw drive module according to claim 1, characterized in that one end of the first ball screw (2a) and one end of the second ball screw (2b) are connected to each other by a first coupling (2 e).
3. A positive and negative lead screw drive module according to claim 1, wherein the output shaft of the servo motor (5) is fixedly connected with the end of the bidirectional driving member (2) by a second coupling (5 a).
4. A positive and negative lead screw drive module according to claim 1, wherein a cover plate (1c) is provided above the base (1a), the cover plate (1c) covers the bidirectional driving member (2) in the working state, and a gap for the first slide (3) and the second slide (4) to pass through is provided between both sides of the cover plate (1c) and the base (1 a).
5. A reversible screw drive module according to claim 1, wherein the mounting member (1b) comprises a pair of bearings (1b1) for supporting two ends of the bidirectional driving member (2), a front support member (1b2) and a rear support member (1b3) for supporting the pair of bearings (1b 1); the front end supporting piece (1b2) and the rear end supporting piece (1b3) are respectively fixed at two ends of the base (1a) in the length direction, and the servo motor (5) is fixed on the rear end supporting piece (1b 3).
6. A positive and negative lead screw drive module according to claim 1, wherein the first slide (3) and the second slide (4) are provided with anti-collision blocks (7) for damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418302.2U CN214999195U (en) | 2021-06-24 | 2021-06-24 | Forward and reverse lead screw transmission module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418302.2U CN214999195U (en) | 2021-06-24 | 2021-06-24 | Forward and reverse lead screw transmission module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214999195U true CN214999195U (en) | 2021-12-03 |
Family
ID=79082770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121418302.2U Active CN214999195U (en) | 2021-06-24 | 2021-06-24 | Forward and reverse lead screw transmission module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214999195U (en) |
-
2021
- 2021-06-24 CN CN202121418302.2U patent/CN214999195U/en active Active
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